Mark Johnston b529028676 Implement support for boot-time DTrace. ... This allows one to enable DTrace probes relatively early during boot, during SI_SUB_DTRACE_ANON, before dtrace(1) can invoked. The desired enabling is created using dtrace -A, which writes a /boot/dtrace.dof file and uses nextboot(8) to ensure that DTrace kernel modules are loaded and that the DOF file describing the enabling is loaded by loader(8) during the subsequent boot. The trace output can then be fetched with dtrace -a. With this commit, boot-time DTrace is only functional on i386 and amd64: on other architectures, the high-resolution timer frequency is initialized during SI_SUB_CLOCKS and is thus not available when the anonymous tracing state is initialized. On x86, the TSC is used and is thus available earlier. MFC after: 1 month Relnotes: yes		2016-04-10 01:25:48 +00:00
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compat/opensolaris	Use calloc() instead of malloc() + bzero(). This also gets rid of a warning	2014-12-08 06:10:47 +00:00
contrib	Implement support for boot-time DTrace.	2016-04-10 01:25:48 +00:00
lib	DIRDEPS_BUILD: Connect MK_TESTS.	2016-03-09 22:46:01 +00:00
sbin	DIRDEPS_BUILD: Connect MK_TESTS.	2016-03-09 22:46:01 +00:00
tests	DIRDEPS_BUILD: Connect MK_TESTS.	2016-03-09 22:46:01 +00:00
usr.bin	DIRDEPS_BUILD: Connect MK_TESTS.	2016-03-09 22:46:01 +00:00
usr.sbin	DIRDEPS_BUILD: Connect MK_TESTS.	2016-03-09 22:46:01 +00:00
Makefile	Add more SUBDIR_PARALLEL.	2015-10-15 22:55:08 +00:00
Makefile.inc	Make DTrace stuff compile with C99 standard.	2014-08-22 20:04:51 +00:00